EP 1112661 B1 20041229 - TRACKING SEMANTIC OBJECTS IN VECTOR IMAGE SEQUENCES
Title (en)
TRACKING SEMANTIC OBJECTS IN VECTOR IMAGE SEQUENCES
Title (de)
VERFOLGUNG SEMANTISCHER OBJEKTE IN VEKTORBILDSEQUENZEN
Title (fr)
SUIVI D'OBJETS SEMANTIQUES DANS DES SEQUENCES D'IMAGES VECTORIELLES
Publication
Application
Priority
- US 9920476 W 19990910
- US 15136898 A 19980910
Abstract (en)
[origin: EP1519589A2] A semantic object tracking method tracks general semantic objects with multiple non-rigid motion, disconnected components and multiple colors throughout a vector image sequence. The method accurately tracks these general semantic objects by spatially segmenting image regions from a current frame and then classifying these regions as to which semantic object they originated from in the previous frame. To classify each region, the method perform a region based motion estimation between each spatially segmented region and the previous frame to computed the position of a predicted region in the previous frame. The method then classifies each region in the current frame as being part of a semantic object based on which semantic object in the previous frame contains the most overlapping points of the predicted region. Using this method, each region in the current image is tracked to one semantic object from the previous frame, with no gaps or overlaps. The method propagates few or no errors because it projects regions into a frame where the semantic object boundaries are previously computed rather than trying to project and adjust a boundary in a frame where the object's boundary is unknown.
IPC 1-7
IPC 8 full level
H04N 7/18 (2006.01); G06F 7/00 (2006.01); G06T 3/00 (2006.01); G06T 7/20 (2006.01); G06V 10/24 (2022.01); H04N 7/26 (2006.01); H04N 7/32 (2006.01)
CPC (source: EP US)
G06T 7/11 (2017.01 - EP US); G06T 7/174 (2017.01 - EP US); G06T 7/215 (2017.01 - EP US); G06T 7/246 (2017.01 - EP US); G06V 10/24 (2022.01 - EP US); H04N 19/543 (2014.11 - EP US); H04N 19/80 (2014.11 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0016563 A1 20000323; AT E286337 T1 20050115; DE 69922973 D1 20050203; DE 69922973 T2 20050519; EP 1112661 A1 20010704; EP 1112661 B1 20041229; EP 1519589 A2 20050330; EP 1519589 A3 20101208; JP 2002525735 A 20020813; JP 4074062 B2 20080409; US 2004189863 A1 20040930; US 2005240629 A1 20051027; US 6711278 B1 20040323; US 7088845 B2 20060808; US 7162055 B2 20070109
DOCDB simple family (application)
US 9920476 W 19990910; AT 99948144 T 19990910; DE 69922973 T 19990910; EP 04025956 A 19990910; EP 99948144 A 19990910; JP 2000570977 A 19990910; US 15136898 A 19980910; US 17144805 A 20050629; US 76713504 A 20040128